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2 posts

RetrogamingDeep Dive October 4, 2026 8 min read

Sega Saturn SCU DSP: Program RAM, Data Banks, and Parallel Operations

Inspect the Saturn SCU DSP's small Harvard-style memories, instruction buses, multiply-accumulate path, program loading, and cycle-aware emulator tests.

#sega-saturn#scu#dsp

RetrogamingDeep Dive October 3, 2026 8 min read

Sega Saturn SCU DMA: Transfer Levels, Indirect Tables, and Bus Boundaries

Read the Saturn SCU DMA contract: three CPU transfer levels, direct and indirect modes, byte counts, address updates, triggers, and documented restrictions.

#sega-saturn#scu#dma